Are these two babes wearing the same headdo?
(Left: “Nymph” from f71r, right: “Triptych of Jean Braque”, detail, Rogier van der Weyden (attrib.)
The Virgin Mary seems to stem from around 1450, fitting the period assumed for the VM nicely. (Note the ointment jar in her hands, which resembles the VM “jars” as well.)
Thoughts about the Voynich Manuscript 
Hello Elmar,
by coincidence, I found the same image on the following website, which has some more “interesting jars”:
http://witcombe.sbc.edu/davincicode/magdalen-jar.html
Rene